Expert AC installation from our 901 Jupiter Rd headquarters. High-efficiency systems sized correctly for your Plano home. 15-25 minute response, same-day consultations available.
Trusted AC installation experts serving Plano since 2004—right from our 901 Jupiter Rd headquarters.
901 Jupiter Rd headquarters means 15-25 min response to every Plano neighborhood.
Manual J load calculations ensure your system is sized correctly—not oversized or undersized.
Fully licensed TACLA38788C, bonded, and background-checked installation teams.
Manufacturer warranties plus our installation guarantee. Peace of mind for 10+ years.
Installing a new air conditioning system is one of the biggest home improvement investments you'll make—and it deserves to be done right. Since 2004, LEX has been installing high-efficiency AC systems throughout Plano, from the original neighborhoods near downtown to new construction in Legacy West and Willow Bend.
When you choose LEX for your AC installation, you're working with a team that's headquartered right here in Plano at 901 Jupiter Rd. We're not subcontractors from another city—we're your neighbors. We understand North Texas summers, we know Plano's housing stock (1970s ranch homes, 2000s McMansions, modern builds), and we've installed thousands of systems in your exact neighborhood.
What makes our AC installations different:
Premium brands with 10-year warranties and proven reliability in Texas heat.
Traditional split systems with outdoor condenser and indoor air handler. Most common installation type. SEER ratings from 14 to 20+. Available in single-stage, two-stage, and variable-speed models for maximum efficiency.
Cost: $5,000-$12,000 installed
All-in-one heating and cooling. More efficient than traditional furnaces in mild Texas winters. Available in standard and high-efficiency models up to SEER 22. Backup electric heat for extreme cold days.
Cost: $6,000-$14,000 installed
Perfect for home additions, garages, or older homes without ductwork. Single-zone or multi-zone systems. Ultra-quiet operation and zone control. SEER ratings up to 30+ for maximum efficiency.
Cost: $3,500-$9,000 per zone
Learn MoreWe install all major AC brands—here's what Plano homeowners choose most often.
Best for: Reliability and durability in Texas heat
SEER range: 14.3 to 22
Warranty: 10-year parts, 12-year compressor
Why homeowners choose it: "It's Hard To Stop A Trane" isn't just marketing—these systems last 20+ years in North Texas. Variable-speed models are whisper-quiet. Premium pricing but worth it for long-term reliability.
Best for: Advanced features and smart home integration
SEER range: 14 to 26
Warranty: 10-year parts
Why homeowners choose it: Carrier invented air conditioning—they know what they're doing. Infinity series has the best smart thermostat integration. Greenspeed technology adjusts cooling in 1% increments for perfect comfort.
Best for: Efficiency and quiet operation
SEER range: 14 to 26
Warranty: 10-year parts, limited lifetime on select heat exchangers
Why homeowners choose it: Dave Lennox Signature Collection offers SEER ratings up to 26—the highest in the industry. SunSource solar panels can power your AC off-grid. Premium brand with premium features.
Best for: Budget-friendly reliability
SEER range: 14 to 18
Warranty: 10-year parts
Why homeowners choose it: Best value in the industry. Not as many bells and whistles as premium brands, but solid reliability at 30-40% lower cost. Perfect for rentals or budget-conscious homeowners. Made in Texas!
Other brands we install: Rheem, York, American Standard, Bryant, Amana
From consultation to final testing—here's exactly what to expect.
We visit your Plano home, measure your space, inspect existing ductwork, assess insulation, and perform a Manual J load calculation. This determines the exact tonnage you need—not what a salesperson wants to sell you. Consultation takes 1-2 hours and you'll receive an upfront quote before we leave.
Choose your preferred brand and efficiency level. We'll explain SEER ratings, rebates, and financing options. Then we schedule your installation—most systems are installed within 1-2 weeks of consultation. Emergency replacements can be done same-day or next-day.
Our crew arrives on installation day (typically 8am-9am). First step is removing your old system—outdoor condenser, indoor air handler or furnace, and disposing of it properly. We'll also inspect ductwork for damage or leaks that need repair.
We install your new outdoor condenser on a reinforced pad, connect refrigerant lines, install the indoor air handler or furnace, wire the thermostat, and seal all ductwork connections. Installations take 6-12 hours depending on complexity.
Once installed, we charge the system with refrigerant (weighed precisely to manufacturer specs), test electrical connections, measure airflow at every vent, program your thermostat, and run the system through multiple cooling cycles to verify performance.
Before we leave, we show you how to operate your new system, program your thermostat, change filters, and troubleshoot common issues. You'll also receive warranty paperwork and recommended maintenance schedule.
We clean up all debris, haul away your old system, and perform a final walkthrough with you. Most installations are completed in one day. You'll have cool air by bedtime.
We install AC systems in every Plano neighborhood—because we're based right here.
ZIP Codes: 75023, 75024, 75025, 75026, 75074, 75075, 75086, 75093
"LEX installed a new Trane system in our West Plano home. The team was professional, the pricing was transparent, and the installation was completed in one day. Our energy bills dropped 30% the first summer. Best investment we've made in this house."— Jennifer M., West Plano
Central AC systems typically range from $5,000 to $12,000 depending on size (tonnage), efficiency (SEER rating), and brand. A standard 3-ton, 16 SEER system runs $6,000-$8,000 installed. High-efficiency 20+ SEER systems cost $9,000-$12,000. We offer free estimates with upfront pricing.
Most installations are completed in 6-12 hours (one full day). Simple replacements in homes with existing ductwork take 6-8 hours. Complex installations with ductwork modifications or electrical upgrades may take 1-2 days. Emergency replacements can be done same-day if parts are in stock.
We perform a Manual J load calculation to determine the exact size. Generally: 1,000-1,500 sq ft = 2-2.5 tons; 1,500-2,000 sq ft = 2.5-3 tons; 2,000-2,500 sq ft = 3-3.5 tons; 2,500-3,500 sq ft = 4-5 tons. But size also depends on insulation, windows, ceiling height, and sun exposure.
Yes! We offer 0% financing options for qualified buyers, plus flexible payment plans for larger installations. Many Plano homeowners finance their AC replacement to take advantage of high-efficiency systems without upfront costs. Ask about current promotions when you call.
Minimum SEER in Texas is 14 (federal requirement). We recommend 16-18 SEER for most Plano homes—good efficiency without premium pricing. If you plan to stay in your home 10+ years, 20+ SEER systems pay for themselves through energy savings. We'll calculate payback period during your consultation.
If your indoor air handler or furnace is 10+ years old, replace both. Mismatched systems lose 20-30% efficiency and void most manufacturer warranties. If your indoor unit is newer (under 5 years), we can sometimes replace just the outdoor condenser—but we'll give you honest advice based on your specific situation.
With proper maintenance, expect 15-20 years in North Texas. Premium brands (Trane, Carrier, Lennox) with annual tune-ups often last 20+ years. Budget brands (Goodman, Rheem) typically last 12-17 years. Regular maintenance extends lifespan—skip maintenance and you'll get 10-12 years at best.
Yes, we handle all permits required by the City of Plano and schedule inspections. Permit costs are included in our installation quotes. We ensure your installation meets all Texas building codes and manufacturer requirements for warranty compliance.
Complete installation includes: removal and disposal of old system, new outdoor condenser, new indoor air handler or furnace, thermostat installation (wired or WiFi), refrigerant lines, electrical connections, condensate drain, ductwork sealing, system testing, and startup. We also include a 1-year labor warranty plus manufacturer parts warranty (10 years).
Yes! For older homes without existing ductwork, we recommend ductless mini-split systems. These provide efficient cooling without tearing up walls or ceilings. We install single-zone systems for one room/area or multi-zone systems for whole-home cooling. Installation takes 1 day and costs 40-60% less than adding ductwork.
Call for a free, no-pressure consultation. We'll calculate the right size for your Plano home and provide upfront pricing.
Serving Plano since 2004 • 2,000+ 5-Star Reviews • 10-Year Warranties
